21224522542210 has 32 divisors (see below), whose sum is σ = 41288302036800. Its totient is φ = 7809055086528.

The previous prime is 21224522542129. The next prime is 21224522542243. The reversal of 21224522542210 is 1224522542212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288418260 + ... + 288491839.

It is an arithmetic number, because the mean of its divisors is an integer number (1290259438650).

Almost surely, 2^{21224522542210} is an apocalyptic number.

21224522542210 is a deficient number, since it is larger than the sum of its proper divisors (20063779494590).

21224522542210 is a wasteful number, since it uses less digits than its factorization.

21224522542210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576910402.

The product of its (nonzero) digits is 51200, while the sum is 34.

The spelling of 21224522542210 in words is "twenty-one trillion, two hundred twenty-four billion, five hundred twenty-two million, five hundred forty-two thousand, two hundred ten".